<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 - 页面未找到</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f8f9fa;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .error-container {
            text-align: center;
            padding: 2rem;
            max-width: 600px;
        }
        
        .error-code {
            font-size: 120px;
            font-weight: bold;
            color: #dc3545;
            margin-bottom: 1rem;
            line-height: 1;
        }
        
        .error-title {
            font-size: 24px;
            color: #343a40;
            margin-bottom: 1rem;
        }
        
        .error-message {
            color: #6c757d;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        
        .back-home {
            display: inline-block;
            padding: 12px 24px;
            background-color: #007bff;
            color: white;
            text-decoration: none;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        
        .back-home:hover {
            background-color: #0056b3;
        }
        
        .illustration {
            max-width: 300px;
            margin-bottom: 2rem;
        }
    </style>
</head>
<body>
    <div class="error-container">
        <svg class="illustration" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
            <path d="M12 8V12M12 16H12.01M21 12C21 16.9706 16.9706 21 12 21C7.02944 21 3 16.9706 3 12C3 7.02944 7.02944 3 12 3C16.9706 3 21 7.02944 21 12Z" stroke="#dc3545" stroke-width="2" stroke-linecap="round"/>
        </svg>
        <div class="error-code">404</div>
        <h1 class="error-title">抱歉，页面未找到</h1>
        <p class="error-message">
            您访问的页面可能已被移除、名称已更改或暂时不可用。
            请检查输入的网址是否正确，或者尝试使用搜索功能。
        </p>
        <a href="/" class="back-home">返回首页</a>
    </div>
</body>
</html>